If you're waiting for ambitious tech companies to prioritize turning a profit in order to provide some liquidity to their workers, good luck.
I was not familiar with the term "Retained Earnings" – it seems equivalent to "Shareholder Equity" (minus dividends), which is what I had learned in school.
Essentially, GOOG has accumulated $105bn of profit in its lifetime which that has yet to be dispersed to shareholders or invested.
You'd have to think them quite bearish on most currently available opportunities, or quite bullish on not-yet-investable opportunities, or otherwise incapable of effectively deploying capital (eg; due to insufficient human capital). Unless there's something I'm missing.
THis means they've never earned a significant amount of cash net of operating expenses
They've also dumped a ton of money into capex, even still I don't think Amazon has ever gotten close to the retained earnings of any of the other four companies.